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how do I combine data from different foam and spring suppliers in one passport

One passport, multiple suppliers as source

A mattress usually consists of components from different suppliers — foam from one, springs from another, cover and finishing possibly from a third — and that data comes together in one digital product passport per mattress, not in separate passports per component. The manufacturer placing the mattress on the market, or the importer for mattresses from outside the EU, is the party that brings together all the data from those supply chains and prepares it for the passport. In practical terms, this means that the same type of information is needed from each supplier regarding their part of the product, and that information is collected in a fixed location before the passport is compiled.

For whom this applies and where the boundary lies

This concerns the situation in which a mattress is built from materials or components that come from different companies — foam blocks, spring systems, covers, adjustable mechanisms. The party that assembles the mattress and sells it under its own name or brand bears responsibility for the complete passport, even if that party has not produced the foam itself or manufactured a spring. It does not apply to suppliers who do not place a mattress on the market themselves: a foam manufacturer that only supplies foam blocks to a mattress maker does not place a mattress on the market itself and is therefore not subject to the passport obligation, although that foam manufacturer is the party that must provide the correct data about its material. This distinction between who makes the passport and who supplies the building blocks for it is precisely what Article 38 of the ESPR (Regulation (EU) 2024/1781) addresses: actors in the supply chain are required to provide the data necessary for compliance, without thereby becoming responsible for the passport as a whole.

When this really comes into play

When the product passport for mattresses is exactly required remains uncertain — When will the product passport become mandatory for mattresses? goes into further detail. Until the relevant delegated act is published, there is no legal obligation to collect and bundle this data per mattress. However, this is the right time to start anyway, because the question "how do I combine data from multiple suppliers" is precisely the type of process that requires time to get in order — suppliers need to know what is being asked of them, data must come in a comparable format, and that is not something you sort out in a week. Anyone who now already specifies which foam type, which spring type and which composition is in a mattress is better positioned once the obligation becomes concrete.

How to approach this in practice

The first step is to establish which components of the mattress come from which supplier, and what data for each of those components is relevant for the passport — think of material composition, origin, and any chemical substances. Which data must I request from my mattress supplier? describes what that question concretely amounts to. Subsequently, it is advisable not to ask this question on a non-binding basis but to fix it in agreements with the supplier, so that it is clear who supplies which data, in what form and at what time — How do I document the supply of passport data in my purchasing contract? goes into further detail. After that, it is important to check the incoming data from the different suppliers before it ends up in the passport, because a passport is only reliable if the underlying data is too — see How do I check whether my supplier's data is correct?When data from a supplier does not arrive or is incomplete, you will find in My supplier does not provide the data — what can I do? a description of the options. And when a foam or spring supplier is later changed, it is important that the passport remains accurate; does the product passport remain accurate if I switch to a different mattress material supplier addresses precisely that situation.

The legal basis: Article 38 and Article 10 of the ESPR

That a mattress with multiple suppliers is nevertheless described in a single passport follows from the way in which the ESPR allocates roles. Article 10 of the ESPR (Regulation (EU) 2024/1781) describes the requirements that the digital product passport as a whole must meet — the passport belongs to the product as placed on the market, not to the individual components. Article 38 of the ESPR requires actors in the supply chain to provide the information needed to meet those requirements, which forms the basis for requesting data from foam and spring suppliers. And for mattresses imported from outside the EU, Article 29 of the ESPR imposes comparable obligations on the importer, who is then in the position of having to collect the data of the manufacturer outside the EU — What does the product passport mean if I import mattresses from outside the EU? describes that situation further.

If you are already working with multiple foam and spring suppliers, it is best to start by drawing up an overview of which supplier provides which component and what data belongs with it — that overview is the basis for every passport that will later be compiled, regardless of the precise date on which the obligation takes effect.

What you concretely must do

What is expected of you

A mattress rarely consists of material from one supplier. The core comes from a foam or spring manufacturer, the cover from another party, and sometimes there are additions such as flame retardants or coatings. The passport that matrapas.eu compiles must ultimately form one coherent whole about that entire mattress — not a separate account per component.

Passing information to the next link in the chain

Article 38 of the ESPR (Regulation (EU) 2024/1781) describes that actors in the supply chain make available the information needed for the product passport to the next party in the chain. For a mattress manufacturer with 10 to 100 employees, this means in practice that the foam supplier and the spring manufacturer do not simply send a delivery note, but data specifically intended to end up in a passport: composition, origin of materials, any certifications. Which data exactly, is described on the page about which data you request from your mattress supplier.

One passport, multiple data sources

Article 10 of the ESPR describes the requirements that a digital product passport must meet, including that the information at product level is coherent and up-to-date. For a manufacturer who sources foam from supplier A and springs from supplier B, this means that the combination of both datasets must be consistent at the level of the final product — the mattress that the consumer buys — and not remain separate per component. That merging is substantive work: someone must verify that the units, terminology and completeness of both suppliers are aligned before the passport is created.

Responsibility for imports from outside the EU

For companies importing foam, springs or complete mattresses from outside the EU, Article 29 of the ESPR describes obligations for importers, including checking that the required information is present before the product is placed on the market. This particularly affects companies that source cheaper springs or foam from a third country alongside European suppliers: the combination of an EU supplier and a supplier from outside the EU entails two different types of responsibility. What this precisely means for imports from outside the EU is further explained on the page about this.

Where things go wrong in practice

Different suppliers, different definitions. One foam supplier reports density in kg/m³ based on a standard, another based on an internal measurement method. Both figures arrive, but are not directly comparable or mergeable in a single passport.

Incomplete delivery by one link in the chain. The foam manufacturer delivers properly, but the spring supplier omits part of the requested data because it is "not customary" to share. The product passport cannot be compiled as long as that link is missing.

Changing suppliers mid-product line. A mattress manufacturer switches to a new foam supplier for an existing model. The product passport of the stock already in the store is based on the old data; the new stock needs its own data. Without a fixed approach, confusion arises about which version belongs to which batch.

Filling in assumptions where data is missing. Under time pressure, missing data from the spring supplier is "estimated" based on a comparable product in order to complete the product passport. This is an assumption, not verified data, and that difference affects the reliability of the entire product passport.

No established agreement on revision. A supplier changes the composition of the foam without actively notifying this, because it was never agreed that such changes would be communicated. The product passport then continues to show an outdated situation.

What you can record

  • A fixed dataset per supplier, so that foam, spring and cover suppliers all deliver the same categories. See the page on which data you request from your supplier as a starting point for that list.
  • A contractual agreement on delivery, included in your purchasing contract, specifying when and in what form data will be delivered. How this can be documented is shown on the page on agreements in your purchasing contract.
  • A control step before data is merged, so that deviating units or missing fields are detected before the product passport is compiled. See the page on checking data for accuracy.
  • A procedure for changing suppliers, so that when switching to a different foam or spring supplier it is clear which data is replaced and which is retained. This is further described on the page on changing suppliers while keeping data.
  • A note for missing data, so that it is recorded which supplier did not deliver something and when it was requested again, instead of an assumption that is not recognizable as such. If problems persist, the page on what to do if the supplier does not provide the data is a logical next step.
  • A confidentiality agreement where suppliers are reluctant to share composition data, as described on the page on a confidentiality agreement with the supplier.

This is not legal advice. This page provides general information about the legislation this platform concerns. We do not know your situation. If you are in doubt about your own case, consult a lawyer or the competent supervisory authority.

Written with AI based on the sources above, reviewed by a human on 2026-09-05. Is something not correct? Let us know — corrections are given priority.